¿It's the first time you launch it? ¿Have you converted the Source SDK Base 2007 to SteamPipe? ¿Have a game mounted?

EDIT: Alright, my Source SDK Base 2007 just updated and is giving the same error. Usually this problem used to appear if you didn't set correctly a server, or if your gameinfo.txt was wrong, but everything is fine.

the engine itself provides vpk reading with the steampipe beta, the problem is that oc's mount code doesn't respect vpk based mounting, so even adding it to the gameinfo.txt has no effect as the mod overrides it...

the next problem that arises is that MountSteamContent in the filesystem is empty with the steampipe update, this means that there is no linking to the the games being done anymore, this pretty much kills the entire mount code.

To fix it you need to first extract all the vpk's of the games you want to mount and then symlink them into the source sdk base 2007 folder, there will be tools to archive that in time, but for now, this is all you can do...

the engine itself provides vpk reading with the steampipe beta, the problem is that oc's mount code doesn't respect vpk based mounting, so even adding it to the gameinfo.txt has no effect as the mod overrides it...

the next problem that arises is that MountSteamContent in the filesystem is empty with the steampipe update, this means that there is no linking to the the games being done anymore, this pretty much kills the entire mount code.

To fix it you need to first extract all the vpk's of the games you want to mount and then symlink them into the source sdk base 2007 folder, there will be tools to archive that in time, but for now, this is all you can do...

[06.01.2014 13:16 GMT+2] https://gitlitio.us/snippets/3 - passing "debug" (without the quotes) onto the bat allows you to debug the script, everything else passed as "<mount1> <mount2> <mount...>" allows you to only run specific VPK extraction (so that you don't have to wait hours if you only need one folder re-extracted)

this one only takes care of the VPK issue, prepare for long processing, also: this script may contain bugs, use at your own risk